- Neoclerodane diterpenoids from Ajuga taiwanensis
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Phytochemical investigation of Ajuga taiwanensis resulted in the isolation of seven neoclerodane diterpenes, four of which ajugalide-A (1), -B (2), -C (3), and -D (4), are new and the remaining three are known diterpenes, ajugamacrin B (5), ajugapantin A (6), and ajugamarin C1 (7). Their structures were elucidated in spectral and chemical transformation studies.
- Chan, Yu-Yi
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- NEO-CLERODANE DITERPENES FROM AJUGA NIPPONENSIS
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By reinvestigation of the aerial parts of Ajuga nipponensis, four new bitter neo-clerodanes, ajugamarins C1, B2, B3 and D1, and a known diterpene, ajugarin-I, have been isolated.The structures of these diterpenes were elucidated on the basis of spectral data and chemical correlations.Keywords - neo-clerodane; Ajuga nipponensis; bitter principle; diterpene; Labiataeajugamarin
- Shimomura, Hiroko,Sashida, Yutaka,Ogawa, Kazunori
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p. 354 - 357
(2007/10/02)
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